198
Hardware
failure
Voltage drop of
power supply for
redundant base
unit
SINGLE PS.
DOWN
• Always Continue On On ×
Redundant power
supply module
failure
SINGLE PS.
ERROR
• Always Continue On On ×
*5
*5
Flash ROM error
FLASH ROM
ERROR
• Writing to ROM Continue On On
Handling
error
Module
verification
*1*2
UNIT VERIFY
ERR.
• Execution of the
END instruction
Stop/
continue
Off/on
Flashing
/on
Base assignment
error
BASE LAY
ERROR
• Power-on/reset Stop Off Flashing
Intelligent
function module
assignment error
SP.UNIT LAY
ERR.
• Power-on/reset
• Switching from
STOP to RUN
Stop Off Flashing
Intelligent
program
execution error
*1
SP.UNIT
ERROR
• Execution of the
FROM/TO
instructions
Stop/
continue
Off/on
Flashing
/on
Intelligent
function module
version error
SP.UNIT
VER.ERR
• Power-on/reset Stop Off Flashing
No parameter
MISSING
PARA.
• Power-on/reset
• Switching from
STOP to RUN
Stop Off Flashing
Boot error BOOT ERROR • Power-on/reset Stop Off Flashing
Backup error
RESTORE
ERROR
• Power-on/reset Stop Off Flashing
Memory card
operation error
*1
ICM.OPE.
ERROR
• Mounting/
removal of the
memory card
Stop/
continue
Off/on
Flashing
/on
××
Memory card
access error
MEM.ACCESS
ERROR
• Always Continue On On × × × ×
File setting error
FILE SET
ERROR
• Power-on/reset
• Writing to
programmable
controller
Stop Off Flashing
File access
error
*1
FILE OPE.
ERROR
• Execution of an
instruction
Stop/
continue
Off/on
Flashing
/on
Instruction
execution
disabled
CAN'T
EXE.PRG.
• Power-on/reset
• Switching from
STOP to RUN
Stop Off Flashing
Diagnostics
Error
message
Diagnostic
timing
CPU
module
status
LED status
Q00UJ
CPU
Q00U
CPU,
Q01U
CPU
Q02U
CPU
QnUD
(E)(H)
CPU
QnUDV
CPU,
QnUDP
VCPU
RUN ERR.